ONE:CHAPTER XLIV. AT LAST.
TWO:The Epicurean philosophy of life and mind is completed by a sketch of human progress from its earliest beginnings to the complete establishment of civilisation. Here our principal authority is Lucretius; and no part of his great poem has attracted so much attention and admiration in recent times as that in which he so vividly places before us the condition of primitive men with all its miseries, and the slow steps whereby family life, civil society, religion, industry, and science arose out of the original chaos and war of all against each. But it seems likely that here, as elsewhere, Lucretius did no more than copy and colour the outlines already traced by his masters hand.189 How far Epicurus himself is to be credited with this brilliant forecast of modern researches into the history of civilisation, is a more difficult question. When we99 consider that the most important parts of his philosophy were compiled from older systems, and that the additions made by himself do not indicate any great capacity for original research, we are forced to conclude that, here also, he is indebted to some authority whose name has not been preserved. The development of civilisation out of barbarism seems, indeed, to have been a standing doctrine of Greek Humanism, just as the opposite doctrine of degeneracy was characteristic of the naturalistic school. It is implied in the discourse of Protagoras reported by Plato, and also, although less fully, in the introduction to the History of Thucydides. Plato and Aristotle trace back the intellectual and social progress of mankind to very rude beginnings; while both writers assume that it was effected without any supernatural aida point marked to the exclusive credit of Epicurus by M. Guyau.190 The old notion of a golden age, accepted as it was by so powerful a school as Stoicism, must have been the chief obstacle to a belief in progress; but the Prometheus of Aeschylus, with its vivid picture of the miseries suffered by primitive men through their ignorance of the useful arts, shows that a truer conception had already gained ground quite independently of philosophic theories. That the primitive state was one of lawless violence was declared by another dramatic poet, Critias, who has also much to say about the civilising function of religion;191 and shortly before the time of Epicurus the same view was put forward by Euphorion, in a passage of which, as it will probably be new to many of our readers, we subjoin a translation:
ONE:Sir A. Grant is on stronger, or rather on more inaccessible ground, when he uses the distinction between the two reasons as involving a sort of idealistic theory, because here Aristotles meaning is much less clearly expressed. Yet, if our interpretation be the correct one, if the creative Nous simply means the forms of things acting through the imagination on the possibilities of subjective conception, Aristotles view will be exactly the reverse of that contended for by Sir Alexander; thought, instead of moulding, will itself be moulded by external reality. In no case have we a right to set an obscure and disputed passage against Aristotles distinct, emphatic, and reiterated declarations, that sensation and ideation are373 substantially analogous processes, taken together with his equally distinct declaration, that the objects of sensation are independent of our feelings. We think, indeed, that Sir A. Grant will find, on reconsideration, that he is proving too much. For, if the things which reason creates were external to the mind, then Aristotle would go at least as far as those extreme German idealists from whom his expositor is anxious to separate him. Finally, we would observe that to set up Aristotles distinction between form and matter in opposition to the materialistic theories of the present day, shows a profound misconception of its meaning. Form and matter are nowhere distinguished from one another as subject and object. Form simply means the attributes of a thing, the entire aggregate of its differential characteristics. But that this does not of itself amount to conscious reason we are told by Aristotle himself.269 On the other hand, the matter to which some philosophers attribute an independent existence, is not his matter at all, but just the sum of things minus consciousness. The Stagirite did not, it is true, believe in the possibility of such a universe, but only (as we have shown) because he was not acquainted with the highest laws of motion. Yet, even taking matter in his own technical sense, Aristotle would have agreed with Prof. Tyndall, that it contained the promise and the potency of all future life, reason alone excepted. He tells us very clearly that the sensitive soul is a somatic function, something which, although not body, belongs to body; and this we conceive is all that any materialist would now contend for.270 And having gone so far, there really was nothing to prevent him from going a step farther, had he only been acquainted with the dependence of all intelligence on nervous action. At any rate, the tendency is now to obliterate the distinction where he drew it, and to substitute for it another distinction which he neglected. While all functions of consciousness, from the most elementary374 sensation to the most complex reasoning, seem to pass into one another by imperceptible gradations, consciousness in general is still separated from objective existence by an impassable chasm; and if there is any hope of reconciling them it lies in the absolute idealism which he so summarily rejected. What we have had occasion repeatedly to point out in other departments of his system, is verified once more in his psychology. The progress of thought has resulted from a reunion of the principles between which he drew a rigid demarcation. We have found that perception can only be understood as a process essentially homogeneous with the highest thought, and neither more nor less immaterial than it is. On the objective side, both may be resolved into sensori-motor actions; on the subjective side, into groups of related feelings. And here, also, we have to note that when Aristotle anticipates modern thought, it is through his one great mediating, synthetic conception. He observes incidentally that our knowledge of size and shape is acquired, not through the special senses, but by motionan aper?u much in advance of Locke.271
TWO:It might have been expected that, on reaching physiology, the Stagirite would stand on firmer ground than any of his contemporaries. Such, however, is not the case. As already observed, his achievements belong entirely to the dominion of anatomy and descriptive zoology. The whole internal economy of the animal body is, according to him, designed for the purpose of creating and moderating the vital heat;315 and in apportioning their functions to the different organs he is entirely dominated by this fundamental error. It was a common notion among the Greeks, suggested by sufficiently obvious considerations, that the brain is the seat of the psychic activities. These, however, Aristotle transports to the heart, which, in his system, not only propels the blood through the body, but is also the source of heat, the common centre where the different special sensations meet to be compared, and the organ of imagination and of passion. The sole function of the brain is to cool down the blooda purpose which the lungs also subserve. Some persons believe that air is a kind of food, and is inhaled in order to feed the internal fire; but their theory would involve the absurd consequence that all animals breathe, for all have some heat. Anaxagoras and Diogenes did, indeed, make that assertion, and the latter even went so far as to say that fish breathe with their gills, absorbing the air held in solution by the water passed through thema misapprehension, says Aristotle, which arose from not having studied the final cause of respiration.201 His physiological theory of generation is equally unfortunate. In accordance with his metaphysical system, hereafter to be explained, he distinguishes two elements in the reproductive process, of which one, that contributed by the male, is exclusively formative; and the other, that contributed by the female, exclusively material. The prevalent opinion was evidently, what we know now to be true, that each parent has both a formative and a material share in the composition of the embryo. Again, Aristotle, strangely enough, regards the generative element in both sexes as an unappropriated portion of the animals nutriment, the last and most refined product of digestion, and therefore not a portion of the parental system at all; while other biologists, anticipating Mr. Darwins theory of pangenesis in a very wonderful manner, taught that the semen is a con316flux of molecules derived from every part of the body, and thus strove to account for the hereditary transmission of individual peculiarities to offspring.202
